x86: For integer ALU operation handle v+=v case
x86: For integer ALU operation handle v+=v case

When destination and operand are the same Virtual Register
we should ensure that destination RegLocation is updated after
operand is loaded with LoadValue in physical register.

Change-Id: I59da106471b0c494203af01c99583f51dbc0f9ee
Signed-off-by: Serguei Katkov <53c1eb3349c33a81de4c7fece05dd168a3eb410e@intel.com>

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst